QPID-5159: fixups after previous directory rename of broker to broker-core
 - Add new broker module build.xml
 - Updates the other modules to rely on broker-core, make it all compile.
 - 'Un-move' the bin, etc, scripts dirs and other non-core files to 'leave' them in the broker module.
 - 'Un-move' the Main and MainTest classes to 'leave' them in the broker module.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1525736 13f79535-47bb-0310-9956-ffa450edef68